Wavelength selection in reaction-diffusion systems can be understood as a coarsening process that is interrupted by counteracting processes at certain wavelengths. We first show that coarsening in mass-conserving systems is driven by self-amplifying mass transport between neighboring high-density domains. We derive a general coarsening criterion and show that coarsening is generically uninterrupted in two-component systems that conserve mass. The theory is then generalized to study interrupted coarsening and anticoarsening due to weakly broken mass conservation, providing a general path to analyze wavelength selection in pattern formation far from equilibrium.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevLett.126.104101 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Chemical- and photo-activation of protein-protein thiol-ene coupling for protein profiling.
Commun Chem
January 2025
School of Chemistry, Trinity College Dublin, Dublin, Ireland.
The thiol-ene reaction between an alkene and a thiol can be exploited for selective labelling of cysteine residues in protein profiling applications. Here, we explore thiol-ene activation in systems from chemical models to complex cellular milieus, using UV, visible wavelength and redox initiators. Initial studies in chemical models required an oxygen-free environment for efficient coupling and showed very poor activation when using a redox initiator.
View Article and Find Full Text PDFTwo-wavelength-selective Soft Actuators Comprising Thermosensitive and Lanthanoid-ion-coordinated Interpenetrating Polymer Network Gels.
J Oleo Sci
January 2025
Graduate School of Science and Technology, Kumamoto University.
Near-infrared wavelength-selective soft actuators have attracted much attention for applications in microsystems in bioliving. It is desirable for the photothermal conversion materials in the actuators to be downsized to the molecular scale. However, in conventional actuator materials using copolymer gels composed of thermosensitive and photothermal conversion molecule-coordinated monomers, the strong cross-linking of molecules in the networks impairs the actuator deformation.
View Article and Find Full Text PDFA novel interval sparse evolutionary algorithm for efficient spectral variable selection.
Anal Chim Acta
March 2025
School of Automation, Central South University, 410083, Changsha, China. Electronic address:
In spectral analysis, selecting the right spectral variables is crucial for effective modeling. It reduces data dimensionality, removes irrelevant wavelength points, and improves both the generalization ability and computational efficiency of the model. However, the number of available samples often falls short of the total possible combinations of wavelengths, making variable selection a non-deterministic polynomial-time (NP) hard optimization problem.
View Article and Find Full Text PDFShifting surface plasmon resonance wavelength to the far-ultraviolet region with aluminum-based sensors.
Spectrochim Acta A Mol Biomol Spectrosc
January 2025
Department of Chemistry, College of Science, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan. Electronic address:
A novel aluminum (Al)-based surface plasmon resonance (SPR) sensor operating in the far-ultraviolet (FUV, <200 nm) region has been developed. By utilizing a thinner Al film compared to previously reported deep-ultraviolet (DUV, <300 nm) SPR sensors, the SPR wavelength was effectively maintained within the FUV region across various liquids. In the presence of resonant molecules, the SPR wavelength shift was notably enhanced.
View Article and Find Full Text PDFHyperspectral estimation of chlorophyll density in winter wheat using fractional-order derivative combined with machine learning.
Front Plant Sci
January 2025
College of Agriculture, Shanxi Agricultural University, Taigu, Shanxi, China.
Chlorophyll density (ChD) can reflect the photosynthetic capacity of the winter wheat population, therefore achieving real-time non-destructive monitoring of ChD in winter wheat is of great significance for evaluating the growth status of winter wheat. Derivative preprocessing has a wide range of applications in the hyperspectral monitoring of winter wheat chlorophyll. In order to research the role of fractional-order derivative (FOD) in the hyperspectral monitoring model of ChD, this study based on an irrigation experiment of winter wheat to obtain ChD and canopy hyperspectral reflectance.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!